add wp-rocket

wp-content/plugins/wp-rocket/inc/ThirdParty/Hostings/HostResolver.php

@@ -0,0 +1,113 @@
+<?php
+
+namespace WP_Rocket\ThirdParty\Hostings;
+
+/**
+ * Host Resolver.
+ *
+ * @since 3.6.3
+ */
+class HostResolver {
+
+	/**
+	 * Name of the current host service.
+	 *
+	 * @var string
+	 */
+	private static $hostname = '';
+
+	/**
+	 * Get the name of an identifiable hosting service.
+	 *
+	 * @since 3.6.3
+	 *
+	 * @param bool $ignore_cached_hostname (optional) Don't use cached hostname when true.
+	 *
+	 * @return string Name of the hosting service or '' if no service is recognized.
+	 */
+	public static function get_host_service( $ignore_cached_hostname = false ) {
+
+		if ( ! $ignore_cached_hostname && ! empty( self::$hostname ) ) {
+			return self::$hostname;
+		}
+
+		if ( isset( $_SERVER['cw_allowed_ip'] ) ) {
+			self::$hostname = 'cloudways';
+
+			return 'cloudways';
+		}
+
+		if ( rocket_get_constant( 'IS_PRESSABLE' ) ) {
+			self::$hostname = 'pressable';
+
+			return 'pressable';
+		}
+
+		if ( getenv( 'SPINUPWP_CACHE_PATH' ) ) {
+			self::$hostname = 'spinupwp';
+
+			return 'spinupwp';
+		}
+
+		if (
+		(
+			class_exists( 'WpeCommon' )
+			&&
+			function_exists( 'wpe_param' )
+		)
+		) {
+			self::$hostname = 'wpengine';
+
+			return 'wpengine';
+		}
+
+		if ( rocket_has_constant( 'O2SWITCH_VARNISH_PURGE_KEY' ) ) {
+			self::$hostname = 'o2switch';
+
+			return 'o2switch';
+		}
+
+		if ( rocket_get_constant( 'WPCOMSH_VERSION' ) ) {
+			self::$hostname = 'wordpresscom';
+
+			return 'wordpresscom';
+		}
+
+		if (
+			rocket_get_constant( '\Savvii\CacheFlusherPlugin::NAME_FLUSH_NOW' )
+			&&
+			rocket_get_constant( '\Savvii\CacheFlusherPlugin::NAME_DOMAINFLUSH_NOW' )
+		) {
+			return 'savvii';
+		}
+
+		if ( self::is_dreampress() ) {
+			return 'dreampress';
+		}
+
+		return '';
+	}
+
+	/**
+	 * Checks if the current host is DreamPress
+	 *
+	 * @since 3.7.2
+	 *
+	 * @return boolean
+	 */
+	private static function is_dreampress() {
+		if ( ! isset( $_SERVER['DH_USER'] ) ) {
+			return false;
+		}
+
+		if (
+			! rocket_get_constant( 'WP_ROCKET_IS_TESTING', false )
+			&&
+			'dp-' !== substr( gethostname(), 0, 3 )
+		) {
+			return false;
+		}
+
+		return 'wp_' === substr( sanitize_key( wp_unslash( $_SERVER['DH_USER'] ) ), 0, 3 );
+	}
+}